DESIGN: The Pro 50 Set has a weight range of 5-50lbs per hand Gives every 2.5 lb. increment Replaces 20 pairs of dumbbells in the space of 1 pair Replaces 20 pairs of dumbbells Equivalent of 1049 lbs. of free weights Size: 13"L x 7" W x 7.25" H WEIGHT INCREMENTS: 2.5, 5, 7.5, 10, 12.5, 15, 17.5, 20, 22.5, 25, 27.5, 30, 32.5, 35, 37.5, 40, 42.5, 45, 47.5 and 50 lbs per hand